<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>绑定样式</title>
    <!-- 引入vue -->
    <script type="text/javascript" src="../js/vue.js"></script>
</head>

<body>
    <!-- 准备好一个容器 -->
    <div id="demo">
        <!-- 遍历数组 -->
        <h2>人员列表展示</h2>
        <button @click.once="addUser">添加一个用户</button>
        <ul>
            <li v-for="(p,index) in persons" :key="p.id">
                {{p.name}}-{{p.age}}
                <input type="text">
            </li>
        </ul>

    </div>
    <script>
        Vue.config.productionTip = false // 以阻止 vue 在启动时生成生产提示。

        new Vue({
            el: '#demo',
            data: {
                persons: [
                    { id: '01', name: '张三', age: 18 },
                    {
                        id: '02',
                        name: '李四',
                        age: 19
                    }, {
                        id: '03',
                        name: '王五',
                        age: 20
                    }],
            },
            methods: {
                addUser ()
                {
                    const usr = {
                        id: '004',
                        name: '小明',
                        age: 12
                    }
                    this.persons.unshift(usr)
                }
            },
        })
    </script>
</body>

</html>